Ovarian cancer Cancer Malignant neoplasm of ovary
Conditions
Interventions
Eligible participants will be women in the UK who own at least one loyalty card with the participating high street retailers. Of these women, those who have been diagnosed with ovarian cancer are elig
Sponsors
Imperial College of Science, Technology and Medicine
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Women, at least 18 years old, recently diagnosed with ovarian cancer (preferably recruited just after diagnosis and during treatment period, but are still eligible if diagnosed up to 2 years prior, at the latest) who hold at least one participating high street retailer loyalty card are eligible to join the CLOCS as cases 2. Women, at least 18 years old, who have not been diagnosed with ovarian cancer and hold at least one participating high street retailer loyalty card are eligible to join the CLOCS as controls
Exclusion criteria
Exclusion criteria: 1. Women under the age of 18 years 2. Men
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The time by which the cases and controls are statistically significantly different in their purchase behaviours leading up to diagnosis on a population level. Method: Data will be collected using questionnaire to establish ovarian cancer risk factors and clinical information; high street retailer loyalty cards data will be collected to establish an individual’s purchases and purchase behaviours. Timepoints: Participants will be recruited at baseline, and data collected at one timepoint (date of recruitment), and all data available up until that timepoint will be analysed. | — |
Secondary
| Measure | Time frame |
|---|---|
| The purchase threshold defined as an “alert” about cancer symptoms in individuals and the predictive utility of purchasing behaviours in the early detection of ovarian cancer. Exploratory analyses will include longitudinal analyses, frequency of purchases and unbiased analysis of other purchase categories. Method: Data will be collected using questionnaire to establish ovarian cancer risk factors and clinical information; high street retailer loyalty cards data will be collected to establish an individual’s purchases and purchase behaviours; Timepoints: Participants will be recruited at baseline, and data collected at one timepoint (date of recruitment), and all data available up until that timepoint will be analysed. | — |
Countries
England, Scotland, United Kingdom, Wales
Outcome results
None listed